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ICD-10 Guide
ICD-10 CodesH16.391

H16.391

Billable

Other interstitial and deep keratitis, right eye

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 H16.391 is a billable code used to indicate a diagnosis of other interstitial and deep keratitis, right eye.

Key Diagnostic Point:

Other interstitial and deep keratitis, right eye

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity
The clinical complexity of H16.391 is moderate, as it involves the assessment of interstitial and deep keratitis which may require detailed examination and potential treatment interventions.

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Optometry

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Coding Guidelines

Inclusion Criteria

Use H16.391 When
  • Ensure accurate documentation of the patient's symptoms, history, and examination findings
  • Use additional codes for any underlying conditions or complications
  • Follow specific guidelines for coding eye disorders and ensure that the right eye is specified in the documentation

Exclusion Criteria

Do NOT use H16.391 When
No specific exclusions found.

Related ICD-10 Codes

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CPT Code

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CPT Code

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CPT Code

Clinical Scenario

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CPT Code

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Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Accurate coding of H16.391 impacts patient care by ensuring appropriate treatment plans are developed. It also affects billing as incorrect coding can lead to claim denials or delays in reimbursement.

ICD-9 vs ICD-10

Accurate coding of H16.391 impacts patient care by ensuring appropriate treatment plans are developed. It also affects billing as incorrect coding can lead to claim denials or delays in reimbursement.

Reimbursement & Billing Impact

billing as incorrect coding can lead to claim denials or delays in reimbursement.

Resources

Clinical References

  • •
    American Academy of Ophthalmology - Keratitis
  • •
    National Eye Institute - Corneal Diseases
  • •
    MedlinePlus - Keratitis

Coding & Billing References

  • •
    American Academy of Ophthalmology - Keratitis
  • •
    National Eye Institute - Corneal Diseases
  • •
    MedlinePlus - Keratitis

Frequently Asked Questions

What are the common symptoms of interstitial keratitis?

Common symptoms include eye pain, redness, blurred vision, sensitivity to light, and excessive tearing.

How is interstitial keratitis treated?

Treatment may include topical corticosteroids, antiviral medications, or other therapies depending on the underlying cause.

Is H16.391 used for both acute and chronic cases?

Yes, H16.391 can be used for both acute and chronic cases of interstitial and deep keratitis, provided the documentation supports the diagnosis.